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Tower controller departs 2 air carrier aircraft on parallel runways with converging flight paths. Their courses merged 1 mi west of the airport resulting in less than standard separation.
| Attributes | |
| ACN | 339138 |
| Time | |
| Date | 199606 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : lax |
| State Reference | CA |
| Altitude | msl bound lower : 2000 msl bound upper : 2000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : lax tower : lax |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial |
| Route In Use | departure other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : initial |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Experience | controller military : 6 controller non radar : 2 controller radar : 5 |
| ASRS Report | 339138 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : nmac non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Miss Distance | horizontal : 400 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
An A320 departed runway 24L heading 250 degrees. A DC9 departed runway 25R and courses converged 1 mi west of lax.
Original NASA ASRS Text
Title: TWR CTLR DEPARTS 2 ACR ACFT ON PARALLEL RWYS WITH CONVERGING FLT PATHS. THEIR COURSES MERGED 1 MI W OF THE ARPT RESULTING IN LTSS.
Narrative: AN A320 DEPARTED RWY 24L HDG 250 DEGS. A DC9 DEPARTED RWY 25R AND COURSES CONVERGED 1 MI W OF LAX.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.